Electronics Forum: functional test (Page 18 of 34)

Re: Aye aye aye.

Electronics Forum | Fri May 15 18:09:00 EDT 1998 | Earl Moon

| | | We understand that testing for ionic contamination and surface insulation resistance measure different properties. We assemble printed circuit boards for other companies. We will not get combs on 90% of the boards that we assemble. | | | We h

Repair a BTU VIP70 or buy a new HELLER??

Electronics Forum | Tue Nov 14 19:59:22 EST 2006 | wchang

Heller 1800S Convection Reflow �� 1996 - 97 vintage �� Dimensions: length 150��, width 53", height 63", �� Number of forced convection zones - top 9, bottom 8 �� Cooling zones: 2 �� Conveyor width (m

TWS Quadra Laser - Anyone?

Electronics Forum | Fri May 01 04:10:35 EDT 2015 | dberenguer

We recently purchased a Quadra Laser P&P machine from another company. The machine is in good conditions and we've been able to test most of the hardware functions of the machine, including fiducial recognition, feeders and header exchange. We feel

First piece inspection

Electronics Forum | Wed Jan 09 20:40:58 EST 2002 | ianchan

Since we are on the topic, What we do over here, is to get SMT Technical to machine pick&place "sample component layouts" onto double-sided tape, which in turn is placed onto an actual PCB... QA will take that double-sided tape sample, and using an

What standards should electronic manufacturing meet?

Electronics Forum | Fri Apr 02 10:12:06 EST 2004 | mapell

Hi Dilbert We manufacture equipment for the electronics industry. The holy grail "guide book" you looking for does not really exist. I wish it did. I got with our compliance engineer this morning for help explain since I am not that experienced i

Possible to temporarily store mounted but not soldered PCB's?

Electronics Forum | Tue Sep 18 10:43:59 EDT 2001 | henriksn

Hi, And thanks for the advice. I have tried your method now, and it seems to be working. By visual inspection with a microscope it was almost impossible to tell the differrence between the pcb that had been in the frig and the pcb's that were normal

Re: BGA open pin

Electronics Forum | Sun Feb 13 01:35:55 EST 2000 | Dean

Without further information my first guess would be lack of flux to "cut through" the ENTEK layer. Question: In X-ray is the suspect ball of equal diameter when compared to adjacent balls? If no then the volume of solder is different which would po

Need help for contact 3AV (2001 YOM )

Electronics Forum | Mon Dec 05 09:04:25 EST 2011 | haiae

I just buy a used Contact 3AV machine. Afer fixed some things I think the machine can be ready to run and in fact for first time the machine power up, pass all self testing, homing is done, moving of table, heads, actuator is good, pneumatic function

Quad ZCR oven password

Electronics Forum | Thu Mar 31 13:42:50 EST 2005 | cadcopac

Well if I know Tyco (like most other assembly folks) they probably want a registration fee before divulging any info about their product. I am having the same problem with a Quad ZCR 941 running Ver 2.9 s/w on a dos bootable diskette. On start-up it

ICT and specifying PCBA testing

Electronics Forum | Tue Nov 01 14:46:31 EDT 2011 | davef

Agilent TestJet Technology White Paper In the early 1990s, the testing of digital parts became problematical. Previous in-circuit test techniques sought to ensure a correct, functioning part by applying digital patterns, called vectors, to the input


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